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First Support on Ginger and OMAP TI
[linux-ginger.git] / drivers / media / dvb / frontends / dvb-pll.c
blob6d865d6161d78b33ffe05472de147bdf5360d06b
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;
48 module_param(debug, int, 0644);
49 MODULE_PARM_DESC(debug, "enable verbose debug messages");
50
51 static unsigned int id[DVB_PLL_MAX] =
52 { [ 0 ... (DVB_PLL_MAX-1) ] = DVB_PLL_UNDEFINED };
53 module_param_array(id, int, NULL, 0644);
54 MODULE_PARM_DESC(id, "force pll id to use (DEBUG ONLY)");
55
56 /* ----------------------------------------------------------- */
57
58 struct dvb_pll_desc {
59 char *name;
60 u32 min;
61 u32 max;
62 u32 iffreq;
63 void (*set)(struct dvb_frontend *fe, u8 *buf,
64 const struct dvb_frontend_parameters *params);
65 u8 *initdata;
66 u8 *sleepdata;
67 int count;
68 struct {
69 u32 limit;
70 u32 stepsize;
71 u8 config;
72 u8 cb;
73 } entries[12];
74 };
75
76 /* ----------------------------------------------------------- */
77 /* descriptions */
78
79 static struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
80 .name = "Thomson dtt7579",
81 .min = 177000000,
82 .max = 858000000,
83 .iffreq= 36166667,
84 .sleepdata = (u8[]){ 2, 0xb4, 0x03 },
85 .count = 4,
86 .entries = {
87 { 443250000, 166667, 0xb4, 0x02 },
88 { 542000000, 166667, 0xb4, 0x08 },
89 { 771000000, 166667, 0xbc, 0x08 },
90 { 999999999, 166667, 0xf4, 0x08 },
91 },
92 };
93
94 static void thomson_dtt759x_bw(struct dvb_frontend *fe, u8 *buf,
95 const struct dvb_frontend_parameters *params)
96 {
97 if (BANDWIDTH_7_MHZ == params->u.ofdm.bandwidth)
98 buf[3] |= 0x10;
99 }
100
101 static struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
102 .name = "Thomson dtt759x",
103 .min = 177000000,
104 .max = 896000000,
105 .set = thomson_dtt759x_bw,
106 .iffreq= 36166667,
107 .sleepdata = (u8[]){ 2, 0x84, 0x03 },
108 .count = 5,
109 .entries = {
110 { 264000000, 166667, 0xb4, 0x02 },
111 { 470000000, 166667, 0xbc, 0x02 },
112 { 735000000, 166667, 0xbc, 0x08 },
113 { 835000000, 166667, 0xf4, 0x08 },
114 { 999999999, 166667, 0xfc, 0x08 },
115 },
116 };
117
118 static struct dvb_pll_desc dvb_pll_lg_z201 = {
119 .name = "LG z201",
120 .min = 174000000,
121 .max = 862000000,
122 .iffreq= 36166667,
123 .sleepdata = (u8[]){ 2, 0xbc, 0x03 },
124 .count = 5,
125 .entries = {
126 { 157500000, 166667, 0xbc, 0x01 },
127 { 443250000, 166667, 0xbc, 0x02 },
128 { 542000000, 166667, 0xbc, 0x04 },
129 { 830000000, 166667, 0xf4, 0x04 },
130 { 999999999, 166667, 0xfc, 0x04 },
131 },
132 };
133
134 static struct dvb_pll_desc dvb_pll_unknown_1 = {
135 .name = "unknown 1", /* used by dntv live dvb-t */
136 .min = 174000000,
137 .max = 862000000,
138 .iffreq= 36166667,
139 .count = 9,
140 .entries = {
141 { 150000000, 166667, 0xb4, 0x01 },
142 { 173000000, 166667, 0xbc, 0x01 },
143 { 250000000, 166667, 0xb4, 0x02 },
144 { 400000000, 166667, 0xbc, 0x02 },
145 { 420000000, 166667, 0xf4, 0x02 },
146 { 470000000, 166667, 0xfc, 0x02 },
147 { 600000000, 166667, 0xbc, 0x08 },
148 { 730000000, 166667, 0xf4, 0x08 },
149 { 999999999, 166667, 0xfc, 0x08 },
150 },
151 };
152
153 /* Infineon TUA6010XS
154 * used in Thomson Cable Tuner
155 */
156 static struct dvb_pll_desc dvb_pll_tua6010xs = {
157 .name = "Infineon TUA6010XS",
158 .min = 44250000,
159 .max = 858000000,
160 .iffreq= 36125000,
161 .count = 3,
162 .entries = {
163 { 115750000, 62500, 0x8e, 0x03 },
164 { 403250000, 62500, 0x8e, 0x06 },
165 { 999999999, 62500, 0x8e, 0x85 },
166 },
167 };
168
169 /* Panasonic env57h1xd5 (some Philips PLL ?) */
170 static struct dvb_pll_desc dvb_pll_env57h1xd5 = {
171 .name = "Panasonic ENV57H1XD5",
172 .min = 44250000,
173 .max = 858000000,
174 .iffreq= 36125000,
175 .count = 4,
176 .entries = {
177 { 153000000, 166667, 0xc2, 0x41 },
178 { 470000000, 166667, 0xc2, 0x42 },
179 { 526000000, 166667, 0xc2, 0x84 },
180 { 999999999, 166667, 0xc2, 0xa4 },
181 },
182 };
183
184 /* Philips TDA6650/TDA6651
185 * used in Panasonic ENV77H11D5
186 */
187 static void tda665x_bw(struct dvb_frontend *fe, u8 *buf,
188 const struct dvb_frontend_parameters *params)
189 {
190 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
191 buf[3] |= 0x08;
192 }
193
194 static struct dvb_pll_desc dvb_pll_tda665x = {
195 .name = "Philips TDA6650/TDA6651",
196 .min = 44250000,
197 .max = 858000000,
198 .set = tda665x_bw,
199 .iffreq= 36166667,
200 .initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab },
201 .count = 12,
202 .entries = {
203 { 93834000, 166667, 0xca, 0x61 /* 011 0 0 0 01 */ },
204 { 123834000, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ },
205 { 161000000, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ },
206 { 163834000, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ },
207 { 253834000, 166667, 0xca, 0x62 /* 011 0 0 0 10 */ },
208 { 383834000, 166667, 0xca, 0xa2 /* 101 0 0 0 10 */ },
209 { 443834000, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ },
210 { 444000000, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ },
211 { 583834000, 166667, 0xca, 0x64 /* 011 0 0 1 00 */ },
212 { 793834000, 166667, 0xca, 0xa4 /* 101 0 0 1 00 */ },
213 { 444834000, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ },
214 { 861000000, 166667, 0xca, 0xe4 /* 111 0 0 1 00 */ },
215 }
216 };
217
218 /* Infineon TUA6034
219 * used in LG TDTP E102P
220 */
221 static void tua6034_bw(struct dvb_frontend *fe, u8 *buf,
222 const struct dvb_frontend_parameters *params)
223 {
224 if (BANDWIDTH_7_MHZ != params->u.ofdm.bandwidth)
225 buf[3] |= 0x08;
226 }
227
228 static struct dvb_pll_desc dvb_pll_tua6034 = {
229 .name = "Infineon TUA6034",
230 .min = 44250000,
231 .max = 858000000,
232 .iffreq= 36166667,
233 .count = 3,
234 .set = tua6034_bw,
235 .entries = {
236 { 174500000, 62500, 0xce, 0x01 },
237 { 230000000, 62500, 0xce, 0x02 },
238 { 999999999, 62500, 0xce, 0x04 },
239 },
240 };
241
242 /* ALPS TDED4
243 * used in Nebula-Cards and USB boxes
244 */
245 static void tded4_bw(struct dvb_frontend *fe, u8 *buf,
246 const struct dvb_frontend_parameters *params)
247 {
248 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
249 buf[3] |= 0x04;
250 }
251
252 static struct dvb_pll_desc dvb_pll_tded4 = {
253 .name = "ALPS TDED4",
254 .min = 47000000,
255 .max = 863000000,
256 .iffreq= 36166667,
257 .set = tded4_bw,
258 .count = 4,
259 .entries = {
260 { 153000000, 166667, 0x85, 0x01 },
261 { 470000000, 166667, 0x85, 0x02 },
262 { 823000000, 166667, 0x85, 0x08 },
263 { 999999999, 166667, 0x85, 0x88 },
264 }
265 };
266
267 /* ALPS TDHU2
268 * used in AverTVHD MCE A180
269 */
270 static struct dvb_pll_desc dvb_pll_tdhu2 = {
271 .name = "ALPS TDHU2",
272 .min = 54000000,
273 .max = 864000000,
274 .iffreq= 44000000,
275 .count = 4,
276 .entries = {
277 { 162000000, 62500, 0x85, 0x01 },
278 { 426000000, 62500, 0x85, 0x02 },
279 { 782000000, 62500, 0x85, 0x08 },
280 { 999999999, 62500, 0x85, 0x88 },
281 }
282 };
283
284 /* Samsung TBMV30111IN / TBMV30712IN1
285 * used in Air2PC ATSC - 2nd generation (nxt2002)
286 */
287 static struct dvb_pll_desc dvb_pll_samsung_tbmv = {
288 .name = "Samsung TBMV30111IN / TBMV30712IN1",
289 .min = 54000000,
290 .max = 860000000,
291 .iffreq= 44000000,
292 .count = 6,
293 .entries = {
294 { 172000000, 166667, 0xb4, 0x01 },
295 { 214000000, 166667, 0xb4, 0x02 },
296 { 467000000, 166667, 0xbc, 0x02 },
297 { 721000000, 166667, 0xbc, 0x08 },
298 { 841000000, 166667, 0xf4, 0x08 },
299 { 999999999, 166667, 0xfc, 0x02 },
300 }
301 };
302
303 /*
304 * Philips SD1878 Tuner.
305 */
306 static struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
307 .name = "Philips SD1878",
308 .min = 950000,
309 .max = 2150000,
310 .iffreq= 249, /* zero-IF, offset 249 is to round up */
311 .count = 4,
312 .entries = {
313 { 1250000, 500, 0xc4, 0x00},
314 { 1450000, 500, 0xc4, 0x40},
315 { 2050000, 500, 0xc4, 0x80},
316 { 2150000, 500, 0xc4, 0xc0},
317 },
318 };
319
320 static void opera1_bw(struct dvb_frontend *fe, u8 *buf,
321 const struct dvb_frontend_parameters *params)
322 {
323 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
324 buf[2] |= 0x08;
325 }
326
327 static struct dvb_pll_desc dvb_pll_opera1 = {
328 .name = "Opera Tuner",
329 .min = 900000,
330 .max = 2250000,
331 .iffreq= 0,
332 .set = opera1_bw,
333 .count = 8,
334 .entries = {
335 { 1064000, 500, 0xe5, 0xc6 },
336 { 1169000, 500, 0xe5, 0xe6 },
337 { 1299000, 500, 0xe5, 0x24 },
338 { 1444000, 500, 0xe5, 0x44 },
339 { 1606000, 500, 0xe5, 0x64 },
340 { 1777000, 500, 0xe5, 0x84 },
341 { 1941000, 500, 0xe5, 0xa4 },
342 { 2250000, 500, 0xe5, 0xc4 },
343 }
344 };
345
346 static void samsung_dtos403ih102a_set(struct dvb_frontend *fe, u8 *buf,
347 const struct dvb_frontend_parameters *params)
348 {
349 struct dvb_pll_priv *priv = fe->tuner_priv;
350 struct i2c_msg msg = {
351 .addr = priv->pll_i2c_address,
352 .flags = 0,
353 .buf = buf,
354 .len = 4
355 };
356 int result;
357
358 if (fe->ops.i2c_gate_ctrl)
359 fe->ops.i2c_gate_ctrl(fe, 1);
360
361 result = i2c_transfer(priv->i2c, &msg, 1);
362 if (result != 1)
363 printk(KERN_ERR "%s: i2c_transfer failed:%d",
364 __func__, result);
365
366 buf[2] = 0x9e;
367 buf[3] = 0x90;
368
369 return;
370 }
371
372 /* unknown pll used in Samsung DTOS403IH102A DVB-C tuner */
373 static struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = {
374 .name = "Samsung DTOS403IH102A",
375 .min = 44250000,
376 .max = 858000000,
377 .iffreq = 36125000,
378 .count = 8,
379 .set = samsung_dtos403ih102a_set,
380 .entries = {
381 { 135000000, 62500, 0xbe, 0x01 },
382 { 177000000, 62500, 0xf6, 0x01 },
383 { 370000000, 62500, 0xbe, 0x02 },
384 { 450000000, 62500, 0xf6, 0x02 },
385 { 466000000, 62500, 0xfe, 0x02 },
386 { 538000000, 62500, 0xbe, 0x08 },
387 { 826000000, 62500, 0xf6, 0x08 },
388 { 999999999, 62500, 0xfe, 0x08 },
389 }
390 };
391
392 /* Samsung TDTC9251DH0 DVB-T NIM, as used on AirStar 2 */
393 static struct dvb_pll_desc dvb_pll_samsung_tdtc9251dh0 = {
394 .name = "Samsung TDTC9251DH0",
395 .min = 48000000,
396 .max = 863000000,
397 .iffreq = 36166667,
398 .count = 3,
399 .entries = {
400 { 157500000, 166667, 0xcc, 0x09 },
401 { 443000000, 166667, 0xcc, 0x0a },
402 { 863000000, 166667, 0xcc, 0x08 },
403 }
404 };
405
406 /* Samsung TBDU18132 DVB-S NIM with TSA5059 PLL, used in SkyStar2 DVB-S 2.3 */
407 static struct dvb_pll_desc dvb_pll_samsung_tbdu18132 = {
408 .name = "Samsung TBDU18132",
409 .min = 950000,
410 .max = 2150000, /* guesses */
411 .iffreq = 0,
412 .count = 2,
413 .entries = {
414 { 1550000, 125, 0x84, 0x82 },
415 { 4095937, 125, 0x84, 0x80 },
416 }
417 /* TSA5059 PLL has a 17 bit divisor rather than the 15 bits supported
418 * by this driver. The two extra bits are 0x60 in the third byte. 15
419 * bits is enough for over 4 GHz, which is enough to cover the range
420 * of this tuner. We could use the additional divisor bits by adding
421 * more entries, e.g.
422 { 0x0ffff * 125 + 125/2, 125, 0x84 | 0x20, },
423 { 0x17fff * 125 + 125/2, 125, 0x84 | 0x40, },
424 { 0x1ffff * 125 + 125/2, 125, 0x84 | 0x60, }, */
425 };
426
427 /* Samsung TBMU24112 DVB-S NIM with SL1935 zero-IF tuner */
428 static struct dvb_pll_desc dvb_pll_samsung_tbmu24112 = {
429 .name = "Samsung TBMU24112",
430 .min = 950000,
431 .max = 2150000, /* guesses */
432 .iffreq = 0,
433 .count = 2,
434 .entries = {
435 { 1500000, 125, 0x84, 0x18 },
436 { 9999999, 125, 0x84, 0x08 },
437 }
438 };
439
440 /* Alps TDEE4 DVB-C NIM, used on Cablestar 2 */
441 /* byte 4 : 1 * * AGD R3 R2 R1 R0
442 * byte 5 : C1 * RE RTS BS4 BS3 BS2 BS1
443 * AGD = 1, R3 R2 R1 R0 = 0 1 0 1 => byte 4 = 1**10101 = 0x95
444 * Range(MHz) C1 * RE RTS BS4 BS3 BS2 BS1 Byte 5
445 * 47 - 153 0 * 0 0 0 0 0 1 0x01
446 * 153 - 430 0 * 0 0 0 0 1 0 0x02
447 * 430 - 822 0 * 0 0 1 0 0 0 0x08
448 * 822 - 862 1 * 0 0 1 0 0 0 0x88 */
449 static struct dvb_pll_desc dvb_pll_alps_tdee4 = {
450 .name = "ALPS TDEE4",
451 .min = 47000000,
452 .max = 862000000,
453 .iffreq = 36125000,
454 .count = 4,
455 .entries = {
456 { 153000000, 62500, 0x95, 0x01 },
457 { 430000000, 62500, 0x95, 0x02 },
458 { 822000000, 62500, 0x95, 0x08 },
459 { 999999999, 62500, 0x95, 0x88 },
460 }
461 };
462
463 /* ----------------------------------------------------------- */
464
465 static struct dvb_pll_desc *pll_list[] = {
466 [DVB_PLL_UNDEFINED] = NULL,
467 [DVB_PLL_THOMSON_DTT7579] = &dvb_pll_thomson_dtt7579,
468 [DVB_PLL_THOMSON_DTT759X] = &dvb_pll_thomson_dtt759x,
469 [DVB_PLL_LG_Z201] = &dvb_pll_lg_z201,
470 [DVB_PLL_UNKNOWN_1] = &dvb_pll_unknown_1,
471 [DVB_PLL_TUA6010XS] = &dvb_pll_tua6010xs,
472 [DVB_PLL_ENV57H1XD5] = &dvb_pll_env57h1xd5,
473 [DVB_PLL_TUA6034] = &dvb_pll_tua6034,
474 [DVB_PLL_TDA665X] = &dvb_pll_tda665x,
475 [DVB_PLL_TDED4] = &dvb_pll_tded4,
476 [DVB_PLL_TDEE4] = &dvb_pll_alps_tdee4,
477 [DVB_PLL_TDHU2] = &dvb_pll_tdhu2,
478 [DVB_PLL_SAMSUNG_TBMV] = &dvb_pll_samsung_tbmv,
479 [DVB_PLL_PHILIPS_SD1878_TDA8261] = &dvb_pll_philips_sd1878_tda8261,
480 [DVB_PLL_OPERA1] = &dvb_pll_opera1,
481 [DVB_PLL_SAMSUNG_DTOS403IH102A] = &dvb_pll_samsung_dtos403ih102a,
482 [DVB_PLL_SAMSUNG_TDTC9251DH0] = &dvb_pll_samsung_tdtc9251dh0,
483 [DVB_PLL_SAMSUNG_TBDU18132] = &dvb_pll_samsung_tbdu18132,
484 [DVB_PLL_SAMSUNG_TBMU24112] = &dvb_pll_samsung_tbmu24112,
485 };
486
487 /* ----------------------------------------------------------- */
488 /* code */
489
490 static int dvb_pll_configure(struct dvb_frontend *fe, u8 *buf,
491 const struct dvb_frontend_parameters *params)
492 {
493 struct dvb_pll_priv *priv = fe->tuner_priv;
494 struct dvb_pll_desc *desc = priv->pll_desc;
495 u32 div;
496 int i;
497
498 if (params->frequency != 0 && (params->frequency < desc->min ||
499 params->frequency > desc->max))
500 return -EINVAL;
501
502 for (i = 0; i < desc->count; i++) {
503 if (params->frequency > desc->entries[i].limit)
504 continue;
505 break;
506 }
507
508 if (debug)
509 printk("pll: %s: freq=%d | i=%d/%d\n", desc->name,
510 params->frequency, i, desc->count);
511 if (i == desc->count)
512 return -EINVAL;
513
514 div = (params->frequency + desc->iffreq +
515 desc->entries[i].stepsize/2) / desc->entries[i].stepsize;
516 buf[0] = div >> 8;
517 buf[1] = div & 0xff;
518 buf[2] = desc->entries[i].config;
519 buf[3] = desc->entries[i].cb;
520
521 if (desc->set)
522 desc->set(fe, buf, params);
523
524 if (debug)
525 printk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
526 desc->name, div, buf[0], buf[1], buf[2], buf[3]);
527
528 // calculate the frequency we set it to
529 return (div * desc->entries[i].stepsize) - desc->iffreq;
530 }
531
532 static int dvb_pll_release(struct dvb_frontend *fe)
533 {
534 kfree(fe->tuner_priv);
535 fe->tuner_priv = NULL;
536 return 0;
537 }
538
539 static int dvb_pll_sleep(struct dvb_frontend *fe)
540 {
541 struct dvb_pll_priv *priv = fe->tuner_priv;
542
543 if (priv->i2c == NULL)
544 return -EINVAL;
545
546 if (priv->pll_desc->sleepdata) {
547 struct i2c_msg msg = { .flags = 0,
548 .addr = priv->pll_i2c_address,
549 .buf = priv->pll_desc->sleepdata + 1,
550 .len = priv->pll_desc->sleepdata[0] };
551
552 int result;
553
554 if (fe->ops.i2c_gate_ctrl)
555 fe->ops.i2c_gate_ctrl(fe, 1);
556 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
557 return result;
558 }
559 return 0;
560 }
561 /* Shouldn't be called when initdata is NULL, maybe BUG()? */
562 return -EINVAL;
563 }
564
565 static int dvb_pll_set_params(struct dvb_frontend *fe,
566 struct dvb_frontend_parameters *params)
567 {
568 struct dvb_pll_priv *priv = fe->tuner_priv;
569 u8 buf[4];
570 struct i2c_msg msg =
571 { .addr = priv->pll_i2c_address, .flags = 0,
572 .buf = buf, .len = sizeof(buf) };
573 int result;
574 u32 frequency = 0;
575
576 if (priv->i2c == NULL)
577 return -EINVAL;
578
579 if ((result = dvb_pll_configure(fe, buf, params)) < 0)
580 return result;
581 else
582 frequency = result;
583
584 if (fe->ops.i2c_gate_ctrl)
585 fe->ops.i2c_gate_ctrl(fe, 1);
586 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
587 return result;
588 }
589
590 priv->frequency = frequency;
591 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
592
593 return 0;
594 }
595
596 static int dvb_pll_calc_regs(struct dvb_frontend *fe,
597 struct dvb_frontend_parameters *params,
598 u8 *buf, int buf_len)
599 {
600 struct dvb_pll_priv *priv = fe->tuner_priv;
601 int result;
602 u32 frequency = 0;
603
604 if (buf_len < 5)
605 return -EINVAL;
606
607 if ((result = dvb_pll_configure(fe, buf+1, params)) < 0)
608 return result;
609 else
610 frequency = result;
611
612 buf[0] = priv->pll_i2c_address;
613
614 priv->frequency = frequency;
615 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
616
617 return 5;
618 }
619
620 static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency)
621 {
622 struct dvb_pll_priv *priv = fe->tuner_priv;
623 *frequency = priv->frequency;
624 return 0;
625 }
626
627 static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
628 {
629 struct dvb_pll_priv *priv = fe->tuner_priv;
630 *bandwidth = priv->bandwidth;
631 return 0;
632 }
633
634 static int dvb_pll_init(struct dvb_frontend *fe)
635 {
636 struct dvb_pll_priv *priv = fe->tuner_priv;
637
638 if (priv->i2c == NULL)
639 return -EINVAL;
640
641 if (priv->pll_desc->initdata) {
642 struct i2c_msg msg = { .flags = 0,
643 .addr = priv->pll_i2c_address,
644 .buf = priv->pll_desc->initdata + 1,
645 .len = priv->pll_desc->initdata[0] };
646
647 int result;
648 if (fe->ops.i2c_gate_ctrl)
649 fe->ops.i2c_gate_ctrl(fe, 1);
650 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
651 return result;
652 }
653 return 0;
654 }
655 /* Shouldn't be called when initdata is NULL, maybe BUG()? */
656 return -EINVAL;
657 }
658
659 static struct dvb_tuner_ops dvb_pll_tuner_ops = {
660 .release = dvb_pll_release,
661 .sleep = dvb_pll_sleep,
662 .init = dvb_pll_init,
663 .set_params = dvb_pll_set_params,
664 .calc_regs = dvb_pll_calc_regs,
665 .get_frequency = dvb_pll_get_frequency,
666 .get_bandwidth = dvb_pll_get_bandwidth,
667 };
668
669 struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
670 struct i2c_adapter *i2c,
671 unsigned int pll_desc_id)
672 {
673 u8 b1 [] = { 0 };
674 struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
675 .buf = b1, .len = 1 };
676 struct dvb_pll_priv *priv = NULL;
677 int ret;
678 struct dvb_pll_desc *desc;
679
680 if ((id[dvb_pll_devcount] > DVB_PLL_UNDEFINED) &&
681 (id[dvb_pll_devcount] < ARRAY_SIZE(pll_list)))
682 pll_desc_id = id[dvb_pll_devcount];
683
684 BUG_ON(pll_desc_id < 1 || pll_desc_id >= ARRAY_SIZE(pll_list));
685
686 desc = pll_list[pll_desc_id];
687
688 if (i2c != NULL) {
689 if (fe->ops.i2c_gate_ctrl)
690 fe->ops.i2c_gate_ctrl(fe, 1);
691
692 ret = i2c_transfer (i2c, &msg, 1);
693 if (ret != 1)
694 return NULL;
695 if (fe->ops.i2c_gate_ctrl)
696 fe->ops.i2c_gate_ctrl(fe, 0);
697 }
698
699 priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
700 if (priv == NULL)
701 return NULL;
702
703 priv->pll_i2c_address = pll_addr;
704 priv->i2c = i2c;
705 priv->pll_desc = desc;
706 priv->nr = dvb_pll_devcount++;
707
708 memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops,
709 sizeof(struct dvb_tuner_ops));
710
711 strncpy(fe->ops.tuner_ops.info.name, desc->name,
712 sizeof(fe->ops.tuner_ops.info.name));
713 fe->ops.tuner_ops.info.frequency_min = desc->min;
714 fe->ops.tuner_ops.info.frequency_max = desc->max;
715 if (!desc->initdata)
716 fe->ops.tuner_ops.init = NULL;
717 if (!desc->sleepdata)
718 fe->ops.tuner_ops.sleep = NULL;
719
720 fe->tuner_priv = priv;
721
722 if ((debug) || (id[priv->nr] == pll_desc_id)) {
723 printk("dvb-pll[%d]", priv->nr);
724 if (i2c != NULL)
725 printk(" %d-%04x", i2c_adapter_id(i2c), pll_addr);
726 printk(": id# %d (%s) attached, %s\n", pll_desc_id, desc->name,
727 id[priv->nr] == pll_desc_id ?
728 "insmod option" : "autodetected");
729 }
730
731 return fe;
732 }
733 EXPORT_SYMBOL(dvb_pll_attach);
734
735 MODULE_DESCRIPTION("dvb pll library");
736 MODULE_AUTHOR("Gerd Knorr");
737 MODULE_LICENSE("GPL");
Linux for Ginger Game Console