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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / drivers / media / dvb-frontends / dvb-pll.c
blob5553b89b804e7d4219d6c767b96fbdb5006cce1b
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
17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
19 #include <linux/slab.h>
20 #include <linux/module.h>
21 #include <linux/dvb/frontend.h>
22 #include <asm/types.h>
23
24 #include "dvb-pll.h"
25
26 #define dprintk(fmt, arg...) \
27 printk(KERN_DEBUG pr_fmt("%s: " fmt), __func__, ##arg)
28
29 struct dvb_pll_priv {
30 /* pll number */
31 int nr;
32
33 /* i2c details */
34 int pll_i2c_address;
35 struct i2c_adapter *i2c;
36
37 /* the PLL descriptor */
38 const struct dvb_pll_desc *pll_desc;
39
40 /* cached frequency/bandwidth */
41 u32 frequency;
42 u32 bandwidth;
43 };
44
45 #define DVB_PLL_MAX 64
46
47 static unsigned int dvb_pll_devcount;
48
49 static int debug;
50 module_param(debug, int, 0644);
51 MODULE_PARM_DESC(debug, "enable verbose debug messages");
52
53 static unsigned int id[DVB_PLL_MAX] =
54 { [ 0 ... (DVB_PLL_MAX-1) ] = DVB_PLL_UNDEFINED };
55 module_param_array(id, int, NULL, 0644);
56 MODULE_PARM_DESC(id, "force pll id to use (DEBUG ONLY)");
57
58 /* ----------------------------------------------------------- */
59
60 struct dvb_pll_desc {
61 const char *name;
62 u32 min;
63 u32 max;
64 u32 iffreq;
65 void (*set)(struct dvb_frontend *fe, u8 *buf);
66 u8 *initdata;
67 u8 *initdata2;
68 u8 *sleepdata;
69 int count;
70 struct {
71 u32 limit;
72 u32 stepsize;
73 u8 config;
74 u8 cb;
75 } entries[];
76 };
77
78 /* ----------------------------------------------------------- */
79 /* descriptions */
80
81 static const struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
82 .name = "Thomson dtt7579",
83 .min = 177000000,
84 .max = 858000000,
85 .iffreq= 36166667,
86 .sleepdata = (u8[]){ 2, 0xb4, 0x03 },
87 .count = 4,
88 .entries = {
89 { 443250000, 166667, 0xb4, 0x02 },
90 { 542000000, 166667, 0xb4, 0x08 },
91 { 771000000, 166667, 0xbc, 0x08 },
92 { 999999999, 166667, 0xf4, 0x08 },
93 },
94 };
95
96 static void thomson_dtt759x_bw(struct dvb_frontend *fe, u8 *buf)
97 {
98 u32 bw = fe->dtv_property_cache.bandwidth_hz;
99 if (bw == 7000000)
100 buf[3] |= 0x10;
101 }
102
103 static const struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
104 .name = "Thomson dtt759x",
105 .min = 177000000,
106 .max = 896000000,
107 .set = thomson_dtt759x_bw,
108 .iffreq= 36166667,
109 .sleepdata = (u8[]){ 2, 0x84, 0x03 },
110 .count = 5,
111 .entries = {
112 { 264000000, 166667, 0xb4, 0x02 },
113 { 470000000, 166667, 0xbc, 0x02 },
114 { 735000000, 166667, 0xbc, 0x08 },
115 { 835000000, 166667, 0xf4, 0x08 },
116 { 999999999, 166667, 0xfc, 0x08 },
117 },
118 };
119
120 static void thomson_dtt7520x_bw(struct dvb_frontend *fe, u8 *buf)
121 {
122 u32 bw = fe->dtv_property_cache.bandwidth_hz;
123 if (bw == 8000000)
124 buf[3] ^= 0x10;
125 }
126
127 static const struct dvb_pll_desc dvb_pll_thomson_dtt7520x = {
128 .name = "Thomson dtt7520x",
129 .min = 185000000,
130 .max = 900000000,
131 .set = thomson_dtt7520x_bw,
132 .iffreq = 36166667,
133 .count = 7,
134 .entries = {
135 { 305000000, 166667, 0xb4, 0x12 },
136 { 405000000, 166667, 0xbc, 0x12 },
137 { 445000000, 166667, 0xbc, 0x12 },
138 { 465000000, 166667, 0xf4, 0x18 },
139 { 735000000, 166667, 0xfc, 0x18 },
140 { 835000000, 166667, 0xbc, 0x18 },
141 { 999999999, 166667, 0xfc, 0x18 },
142 },
143 };
144
145 static const struct dvb_pll_desc dvb_pll_lg_z201 = {
146 .name = "LG z201",
147 .min = 174000000,
148 .max = 862000000,
149 .iffreq= 36166667,
150 .sleepdata = (u8[]){ 2, 0xbc, 0x03 },
151 .count = 5,
152 .entries = {
153 { 157500000, 166667, 0xbc, 0x01 },
154 { 443250000, 166667, 0xbc, 0x02 },
155 { 542000000, 166667, 0xbc, 0x04 },
156 { 830000000, 166667, 0xf4, 0x04 },
157 { 999999999, 166667, 0xfc, 0x04 },
158 },
159 };
160
161 static const struct dvb_pll_desc dvb_pll_unknown_1 = {
162 .name = "unknown 1", /* used by dntv live dvb-t */
163 .min = 174000000,
164 .max = 862000000,
165 .iffreq= 36166667,
166 .count = 9,
167 .entries = {
168 { 150000000, 166667, 0xb4, 0x01 },
169 { 173000000, 166667, 0xbc, 0x01 },
170 { 250000000, 166667, 0xb4, 0x02 },
171 { 400000000, 166667, 0xbc, 0x02 },
172 { 420000000, 166667, 0xf4, 0x02 },
173 { 470000000, 166667, 0xfc, 0x02 },
174 { 600000000, 166667, 0xbc, 0x08 },
175 { 730000000, 166667, 0xf4, 0x08 },
176 { 999999999, 166667, 0xfc, 0x08 },
177 },
178 };
179
180 /* Infineon TUA6010XS
181 * used in Thomson Cable Tuner
182 */
183 static const struct dvb_pll_desc dvb_pll_tua6010xs = {
184 .name = "Infineon TUA6010XS",
185 .min = 44250000,
186 .max = 858000000,
187 .iffreq= 36125000,
188 .count = 3,
189 .entries = {
190 { 115750000, 62500, 0x8e, 0x03 },
191 { 403250000, 62500, 0x8e, 0x06 },
192 { 999999999, 62500, 0x8e, 0x85 },
193 },
194 };
195
196 /* Panasonic env57h1xd5 (some Philips PLL ?) */
197 static const struct dvb_pll_desc dvb_pll_env57h1xd5 = {
198 .name = "Panasonic ENV57H1XD5",
199 .min = 44250000,
200 .max = 858000000,
201 .iffreq= 36125000,
202 .count = 4,
203 .entries = {
204 { 153000000, 166667, 0xc2, 0x41 },
205 { 470000000, 166667, 0xc2, 0x42 },
206 { 526000000, 166667, 0xc2, 0x84 },
207 { 999999999, 166667, 0xc2, 0xa4 },
208 },
209 };
210
211 /* Philips TDA6650/TDA6651
212 * used in Panasonic ENV77H11D5
213 */
214 static void tda665x_bw(struct dvb_frontend *fe, u8 *buf)
215 {
216 u32 bw = fe->dtv_property_cache.bandwidth_hz;
217 if (bw == 8000000)
218 buf[3] |= 0x08;
219 }
220
221 static const struct dvb_pll_desc dvb_pll_tda665x = {
222 .name = "Philips TDA6650/TDA6651",
223 .min = 44250000,
224 .max = 858000000,
225 .set = tda665x_bw,
226 .iffreq= 36166667,
227 .initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab },
228 .count = 12,
229 .entries = {
230 { 93834000, 166667, 0xca, 0x61 /* 011 0 0 0 01 */ },
231 { 123834000, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ },
232 { 161000000, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ },
233 { 163834000, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ },
234 { 253834000, 166667, 0xca, 0x62 /* 011 0 0 0 10 */ },
235 { 383834000, 166667, 0xca, 0xa2 /* 101 0 0 0 10 */ },
236 { 443834000, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ },
237 { 444000000, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ },
238 { 583834000, 166667, 0xca, 0x64 /* 011 0 0 1 00 */ },
239 { 793834000, 166667, 0xca, 0xa4 /* 101 0 0 1 00 */ },
240 { 444834000, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ },
241 { 861000000, 166667, 0xca, 0xe4 /* 111 0 0 1 00 */ },
242 }
243 };
244
245 /* Infineon TUA6034
246 * used in LG TDTP E102P
247 */
248 static void tua6034_bw(struct dvb_frontend *fe, u8 *buf)
249 {
250 u32 bw = fe->dtv_property_cache.bandwidth_hz;
251 if (bw == 7000000)
252 buf[3] |= 0x08;
253 }
254
255 static const struct dvb_pll_desc dvb_pll_tua6034 = {
256 .name = "Infineon TUA6034",
257 .min = 44250000,
258 .max = 858000000,
259 .iffreq= 36166667,
260 .count = 3,
261 .set = tua6034_bw,
262 .entries = {
263 { 174500000, 62500, 0xce, 0x01 },
264 { 230000000, 62500, 0xce, 0x02 },
265 { 999999999, 62500, 0xce, 0x04 },
266 },
267 };
268
269 /* ALPS TDED4
270 * used in Nebula-Cards and USB boxes
271 */
272 static void tded4_bw(struct dvb_frontend *fe, u8 *buf)
273 {
274 u32 bw = fe->dtv_property_cache.bandwidth_hz;
275 if (bw == 8000000)
276 buf[3] |= 0x04;
277 }
278
279 static const struct dvb_pll_desc dvb_pll_tded4 = {
280 .name = "ALPS TDED4",
281 .min = 47000000,
282 .max = 863000000,
283 .iffreq= 36166667,
284 .set = tded4_bw,
285 .count = 4,
286 .entries = {
287 { 153000000, 166667, 0x85, 0x01 },
288 { 470000000, 166667, 0x85, 0x02 },
289 { 823000000, 166667, 0x85, 0x08 },
290 { 999999999, 166667, 0x85, 0x88 },
291 }
292 };
293
294 /* ALPS TDHU2
295 * used in AverTVHD MCE A180
296 */
297 static const struct dvb_pll_desc dvb_pll_tdhu2 = {
298 .name = "ALPS TDHU2",
299 .min = 54000000,
300 .max = 864000000,
301 .iffreq= 44000000,
302 .count = 4,
303 .entries = {
304 { 162000000, 62500, 0x85, 0x01 },
305 { 426000000, 62500, 0x85, 0x02 },
306 { 782000000, 62500, 0x85, 0x08 },
307 { 999999999, 62500, 0x85, 0x88 },
308 }
309 };
310
311 /* Samsung TBMV30111IN / TBMV30712IN1
312 * used in Air2PC ATSC - 2nd generation (nxt2002)
313 */
314 static const struct dvb_pll_desc dvb_pll_samsung_tbmv = {
315 .name = "Samsung TBMV30111IN / TBMV30712IN1",
316 .min = 54000000,
317 .max = 860000000,
318 .iffreq= 44000000,
319 .count = 6,
320 .entries = {
321 { 172000000, 166667, 0xb4, 0x01 },
322 { 214000000, 166667, 0xb4, 0x02 },
323 { 467000000, 166667, 0xbc, 0x02 },
324 { 721000000, 166667, 0xbc, 0x08 },
325 { 841000000, 166667, 0xf4, 0x08 },
326 { 999999999, 166667, 0xfc, 0x02 },
327 }
328 };
329
330 /*
331 * Philips SD1878 Tuner.
332 */
333 static const struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
334 .name = "Philips SD1878",
335 .min = 950000,
336 .max = 2150000,
337 .iffreq= 249, /* zero-IF, offset 249 is to round up */
338 .count = 4,
339 .entries = {
340 { 1250000, 500, 0xc4, 0x00},
341 { 1450000, 500, 0xc4, 0x40},
342 { 2050000, 500, 0xc4, 0x80},
343 { 2150000, 500, 0xc4, 0xc0},
344 },
345 };
346
347 static void opera1_bw(struct dvb_frontend *fe, u8 *buf)
348 {
349 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
350 struct dvb_pll_priv *priv = fe->tuner_priv;
351 u32 b_w = (c->symbol_rate * 27) / 32000;
352 struct i2c_msg msg = {
353 .addr = priv->pll_i2c_address,
354 .flags = 0,
355 .buf = buf,
356 .len = 4
357 };
358 int result;
359 u8 lpf;
360
361 if (fe->ops.i2c_gate_ctrl)
362 fe->ops.i2c_gate_ctrl(fe, 1);
363
364 result = i2c_transfer(priv->i2c, &msg, 1);
365 if (result != 1)
366 pr_err("%s: i2c_transfer failed:%d",
367 __func__, result);
368
369 if (b_w <= 10000)
370 lpf = 0xc;
371 else if (b_w <= 12000)
372 lpf = 0x2;
373 else if (b_w <= 14000)
374 lpf = 0xa;
375 else if (b_w <= 16000)
376 lpf = 0x6;
377 else if (b_w <= 18000)
378 lpf = 0xe;
379 else if (b_w <= 20000)
380 lpf = 0x1;
381 else if (b_w <= 22000)
382 lpf = 0x9;
383 else if (b_w <= 24000)
384 lpf = 0x5;
385 else if (b_w <= 26000)
386 lpf = 0xd;
387 else if (b_w <= 28000)
388 lpf = 0x3;
389 else
390 lpf = 0xb;
391 buf[2] ^= 0x1c; /* Flip bits 3-5 */
392 /* Set lpf */
393 buf[2] |= ((lpf >> 2) & 0x3) << 3;
394 buf[3] |= (lpf & 0x3) << 2;
395
396 return;
397 }
398
399 static const struct dvb_pll_desc dvb_pll_opera1 = {
400 .name = "Opera Tuner",
401 .min = 900000,
402 .max = 2250000,
403 .initdata = (u8[]){ 4, 0x08, 0xe5, 0xe1, 0x00 },
404 .initdata2 = (u8[]){ 4, 0x08, 0xe5, 0xe5, 0x00 },
405 .iffreq= 0,
406 .set = opera1_bw,
407 .count = 8,
408 .entries = {
409 { 1064000, 500, 0xf9, 0xc2 },
410 { 1169000, 500, 0xf9, 0xe2 },
411 { 1299000, 500, 0xf9, 0x20 },
412 { 1444000, 500, 0xf9, 0x40 },
413 { 1606000, 500, 0xf9, 0x60 },
414 { 1777000, 500, 0xf9, 0x80 },
415 { 1941000, 500, 0xf9, 0xa0 },
416 { 2250000, 500, 0xf9, 0xc0 },
417 }
418 };
419
420 static void samsung_dtos403ih102a_set(struct dvb_frontend *fe, u8 *buf)
421 {
422 struct dvb_pll_priv *priv = fe->tuner_priv;
423 struct i2c_msg msg = {
424 .addr = priv->pll_i2c_address,
425 .flags = 0,
426 .buf = buf,
427 .len = 4
428 };
429 int result;
430
431 if (fe->ops.i2c_gate_ctrl)
432 fe->ops.i2c_gate_ctrl(fe, 1);
433
434 result = i2c_transfer(priv->i2c, &msg, 1);
435 if (result != 1)
436 pr_err("%s: i2c_transfer failed:%d",
437 __func__, result);
438
439 buf[2] = 0x9e;
440 buf[3] = 0x90;
441
442 return;
443 }
444
445 /* unknown pll used in Samsung DTOS403IH102A DVB-C tuner */
446 static const struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = {
447 .name = "Samsung DTOS403IH102A",
448 .min = 44250000,
449 .max = 858000000,
450 .iffreq = 36125000,
451 .count = 8,
452 .set = samsung_dtos403ih102a_set,
453 .entries = {
454 { 135000000, 62500, 0xbe, 0x01 },
455 { 177000000, 62500, 0xf6, 0x01 },
456 { 370000000, 62500, 0xbe, 0x02 },
457 { 450000000, 62500, 0xf6, 0x02 },
458 { 466000000, 62500, 0xfe, 0x02 },
459 { 538000000, 62500, 0xbe, 0x08 },
460 { 826000000, 62500, 0xf6, 0x08 },
461 { 999999999, 62500, 0xfe, 0x08 },
462 }
463 };
464
465 /* Samsung TDTC9251DH0 DVB-T NIM, as used on AirStar 2 */
466 static const struct dvb_pll_desc dvb_pll_samsung_tdtc9251dh0 = {
467 .name = "Samsung TDTC9251DH0",
468 .min = 48000000,
469 .max = 863000000,
470 .iffreq = 36166667,
471 .count = 3,
472 .entries = {
473 { 157500000, 166667, 0xcc, 0x09 },
474 { 443000000, 166667, 0xcc, 0x0a },
475 { 863000000, 166667, 0xcc, 0x08 },
476 }
477 };
478
479 /* Samsung TBDU18132 DVB-S NIM with TSA5059 PLL, used in SkyStar2 DVB-S 2.3 */
480 static const struct dvb_pll_desc dvb_pll_samsung_tbdu18132 = {
481 .name = "Samsung TBDU18132",
482 .min = 950000,
483 .max = 2150000, /* guesses */
484 .iffreq = 0,
485 .count = 2,
486 .entries = {
487 { 1550000, 125, 0x84, 0x82 },
488 { 4095937, 125, 0x84, 0x80 },
489 }
490 /* TSA5059 PLL has a 17 bit divisor rather than the 15 bits supported
491 * by this driver. The two extra bits are 0x60 in the third byte. 15
492 * bits is enough for over 4 GHz, which is enough to cover the range
493 * of this tuner. We could use the additional divisor bits by adding
494 * more entries, e.g.
495 { 0x0ffff * 125 + 125/2, 125, 0x84 | 0x20, },
496 { 0x17fff * 125 + 125/2, 125, 0x84 | 0x40, },
497 { 0x1ffff * 125 + 125/2, 125, 0x84 | 0x60, }, */
498 };
499
500 /* Samsung TBMU24112 DVB-S NIM with SL1935 zero-IF tuner */
501 static const struct dvb_pll_desc dvb_pll_samsung_tbmu24112 = {
502 .name = "Samsung TBMU24112",
503 .min = 950000,
504 .max = 2150000, /* guesses */
505 .iffreq = 0,
506 .count = 2,
507 .entries = {
508 { 1500000, 125, 0x84, 0x18 },
509 { 9999999, 125, 0x84, 0x08 },
510 }
511 };
512
513 /* Alps TDEE4 DVB-C NIM, used on Cablestar 2 */
514 /* byte 4 : 1 * * AGD R3 R2 R1 R0
515 * byte 5 : C1 * RE RTS BS4 BS3 BS2 BS1
516 * AGD = 1, R3 R2 R1 R0 = 0 1 0 1 => byte 4 = 1**10101 = 0x95
517 * Range(MHz) C1 * RE RTS BS4 BS3 BS2 BS1 Byte 5
518 * 47 - 153 0 * 0 0 0 0 0 1 0x01
519 * 153 - 430 0 * 0 0 0 0 1 0 0x02
520 * 430 - 822 0 * 0 0 1 0 0 0 0x08
521 * 822 - 862 1 * 0 0 1 0 0 0 0x88 */
522 static const struct dvb_pll_desc dvb_pll_alps_tdee4 = {
523 .name = "ALPS TDEE4",
524 .min = 47000000,
525 .max = 862000000,
526 .iffreq = 36125000,
527 .count = 4,
528 .entries = {
529 { 153000000, 62500, 0x95, 0x01 },
530 { 430000000, 62500, 0x95, 0x02 },
531 { 822000000, 62500, 0x95, 0x08 },
532 { 999999999, 62500, 0x95, 0x88 },
533 }
534 };
535
536 /* ----------------------------------------------------------- */
537
538 static const struct dvb_pll_desc *pll_list[] = {
539 [DVB_PLL_UNDEFINED] = NULL,
540 [DVB_PLL_THOMSON_DTT7579] = &dvb_pll_thomson_dtt7579,
541 [DVB_PLL_THOMSON_DTT759X] = &dvb_pll_thomson_dtt759x,
542 [DVB_PLL_THOMSON_DTT7520X] = &dvb_pll_thomson_dtt7520x,
543 [DVB_PLL_LG_Z201] = &dvb_pll_lg_z201,
544 [DVB_PLL_UNKNOWN_1] = &dvb_pll_unknown_1,
545 [DVB_PLL_TUA6010XS] = &dvb_pll_tua6010xs,
546 [DVB_PLL_ENV57H1XD5] = &dvb_pll_env57h1xd5,
547 [DVB_PLL_TUA6034] = &dvb_pll_tua6034,
548 [DVB_PLL_TDA665X] = &dvb_pll_tda665x,
549 [DVB_PLL_TDED4] = &dvb_pll_tded4,
550 [DVB_PLL_TDEE4] = &dvb_pll_alps_tdee4,
551 [DVB_PLL_TDHU2] = &dvb_pll_tdhu2,
552 [DVB_PLL_SAMSUNG_TBMV] = &dvb_pll_samsung_tbmv,
553 [DVB_PLL_PHILIPS_SD1878_TDA8261] = &dvb_pll_philips_sd1878_tda8261,
554 [DVB_PLL_OPERA1] = &dvb_pll_opera1,
555 [DVB_PLL_SAMSUNG_DTOS403IH102A] = &dvb_pll_samsung_dtos403ih102a,
556 [DVB_PLL_SAMSUNG_TDTC9251DH0] = &dvb_pll_samsung_tdtc9251dh0,
557 [DVB_PLL_SAMSUNG_TBDU18132] = &dvb_pll_samsung_tbdu18132,
558 [DVB_PLL_SAMSUNG_TBMU24112] = &dvb_pll_samsung_tbmu24112,
559 };
560
561 /* ----------------------------------------------------------- */
562 /* code */
563
564 static int dvb_pll_configure(struct dvb_frontend *fe, u8 *buf,
565 const u32 frequency)
566 {
567 struct dvb_pll_priv *priv = fe->tuner_priv;
568 const struct dvb_pll_desc *desc = priv->pll_desc;
569 u32 div;
570 int i;
571
572 if (frequency && (frequency < desc->min || frequency > desc->max))
573 return -EINVAL;
574
575 for (i = 0; i < desc->count; i++) {
576 if (frequency > desc->entries[i].limit)
577 continue;
578 break;
579 }
580
581 if (debug)
582 dprintk("pll: %s: freq=%d | i=%d/%d\n", desc->name,
583 frequency, i, desc->count);
584 if (i == desc->count)
585 return -EINVAL;
586
587 div = (frequency + desc->iffreq +
588 desc->entries[i].stepsize/2) / desc->entries[i].stepsize;
589 buf[0] = div >> 8;
590 buf[1] = div & 0xff;
591 buf[2] = desc->entries[i].config;
592 buf[3] = desc->entries[i].cb;
593
594 if (desc->set)
595 desc->set(fe, buf);
596
597 if (debug)
598 dprintk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
599 desc->name, div, buf[0], buf[1], buf[2], buf[3]);
600
601 // calculate the frequency we set it to
602 return (div * desc->entries[i].stepsize) - desc->iffreq;
603 }
604
605 static void dvb_pll_release(struct dvb_frontend *fe)
606 {
607 kfree(fe->tuner_priv);
608 fe->tuner_priv = NULL;
609 }
610
611 static int dvb_pll_sleep(struct dvb_frontend *fe)
612 {
613 struct dvb_pll_priv *priv = fe->tuner_priv;
614
615 if (priv->i2c == NULL)
616 return -EINVAL;
617
618 if (priv->pll_desc->sleepdata) {
619 struct i2c_msg msg = { .flags = 0,
620 .addr = priv->pll_i2c_address,
621 .buf = priv->pll_desc->sleepdata + 1,
622 .len = priv->pll_desc->sleepdata[0] };
623
624 int result;
625
626 if (fe->ops.i2c_gate_ctrl)
627 fe->ops.i2c_gate_ctrl(fe, 1);
628 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
629 return result;
630 }
631 return 0;
632 }
633 /* Shouldn't be called when initdata is NULL, maybe BUG()? */
634 return -EINVAL;
635 }
636
637 static int dvb_pll_set_params(struct dvb_frontend *fe)
638 {
639 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
640 struct dvb_pll_priv *priv = fe->tuner_priv;
641 u8 buf[4];
642 struct i2c_msg msg =
643 { .addr = priv->pll_i2c_address, .flags = 0,
644 .buf = buf, .len = sizeof(buf) };
645 int result;
646 u32 frequency = 0;
647
648 if (priv->i2c == NULL)
649 return -EINVAL;
650
651 result = dvb_pll_configure(fe, buf, c->frequency);
652 if (result < 0)
653 return result;
654 else
655 frequency = result;
656
657 if (fe->ops.i2c_gate_ctrl)
658 fe->ops.i2c_gate_ctrl(fe, 1);
659 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
660 return result;
661 }
662
663 priv->frequency = frequency;
664 priv->bandwidth = c->bandwidth_hz;
665
666 return 0;
667 }
668
669 static int dvb_pll_calc_regs(struct dvb_frontend *fe,
670 u8 *buf, int buf_len)
671 {
672 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
673 struct dvb_pll_priv *priv = fe->tuner_priv;
674 int result;
675 u32 frequency = 0;
676
677 if (buf_len < 5)
678 return -EINVAL;
679
680 result = dvb_pll_configure(fe, buf + 1, c->frequency);
681 if (result < 0)
682 return result;
683 else
684 frequency = result;
685
686 buf[0] = priv->pll_i2c_address;
687
688 priv->frequency = frequency;
689 priv->bandwidth = c->bandwidth_hz;
690
691 return 5;
692 }
693
694 static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency)
695 {
696 struct dvb_pll_priv *priv = fe->tuner_priv;
697 *frequency = priv->frequency;
698 return 0;
699 }
700
701 static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
702 {
703 struct dvb_pll_priv *priv = fe->tuner_priv;
704 *bandwidth = priv->bandwidth;
705 return 0;
706 }
707
708 static int dvb_pll_init(struct dvb_frontend *fe)
709 {
710 struct dvb_pll_priv *priv = fe->tuner_priv;
711
712 if (priv->i2c == NULL)
713 return -EINVAL;
714
715 if (priv->pll_desc->initdata) {
716 struct i2c_msg msg = { .flags = 0,
717 .addr = priv->pll_i2c_address,
718 .buf = priv->pll_desc->initdata + 1,
719 .len = priv->pll_desc->initdata[0] };
720
721 int result;
722 if (fe->ops.i2c_gate_ctrl)
723 fe->ops.i2c_gate_ctrl(fe, 1);
724 result = i2c_transfer(priv->i2c, &msg, 1);
725 if (result != 1)
726 return result;
727 if (priv->pll_desc->initdata2) {
728 msg.buf = priv->pll_desc->initdata2 + 1;
729 msg.len = priv->pll_desc->initdata2[0];
730 if (fe->ops.i2c_gate_ctrl)
731 fe->ops.i2c_gate_ctrl(fe, 1);
732 result = i2c_transfer(priv->i2c, &msg, 1);
733 if (result != 1)
734 return result;
735 }
736 return 0;
737 }
738 /* Shouldn't be called when initdata is NULL, maybe BUG()? */
739 return -EINVAL;
740 }
741
742 static const struct dvb_tuner_ops dvb_pll_tuner_ops = {
743 .release = dvb_pll_release,
744 .sleep = dvb_pll_sleep,
745 .init = dvb_pll_init,
746 .set_params = dvb_pll_set_params,
747 .calc_regs = dvb_pll_calc_regs,
748 .get_frequency = dvb_pll_get_frequency,
749 .get_bandwidth = dvb_pll_get_bandwidth,
750 };
751
752 struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
753 struct i2c_adapter *i2c,
754 unsigned int pll_desc_id)
755 {
756 u8 *b1;
757 struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD, .len = 1 };
758 struct dvb_pll_priv *priv = NULL;
759 int ret;
760 const struct dvb_pll_desc *desc;
761
762 b1 = kmalloc(1, GFP_KERNEL);
763 if (!b1)
764 return NULL;
765
766 b1[0] = 0;
767 msg.buf = b1;
768
769 if ((id[dvb_pll_devcount] > DVB_PLL_UNDEFINED) &&
770 (id[dvb_pll_devcount] < ARRAY_SIZE(pll_list)))
771 pll_desc_id = id[dvb_pll_devcount];
772
773 BUG_ON(pll_desc_id < 1 || pll_desc_id >= ARRAY_SIZE(pll_list));
774
775 desc = pll_list[pll_desc_id];
776
777 if (i2c != NULL) {
778 if (fe->ops.i2c_gate_ctrl)
779 fe->ops.i2c_gate_ctrl(fe, 1);
780
781 ret = i2c_transfer (i2c, &msg, 1);
782 if (ret != 1) {
783 kfree(b1);
784 return NULL;
785 }
786 if (fe->ops.i2c_gate_ctrl)
787 fe->ops.i2c_gate_ctrl(fe, 0);
788 }
789
790 priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
791 if (!priv) {
792 kfree(b1);
793 return NULL;
794 }
795
796 priv->pll_i2c_address = pll_addr;
797 priv->i2c = i2c;
798 priv->pll_desc = desc;
799 priv->nr = dvb_pll_devcount++;
800
801 memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops,
802 sizeof(struct dvb_tuner_ops));
803
804 strncpy(fe->ops.tuner_ops.info.name, desc->name,
805 sizeof(fe->ops.tuner_ops.info.name));
806 fe->ops.tuner_ops.info.frequency_min = desc->min;
807 fe->ops.tuner_ops.info.frequency_max = desc->max;
808 if (!desc->initdata)
809 fe->ops.tuner_ops.init = NULL;
810 if (!desc->sleepdata)
811 fe->ops.tuner_ops.sleep = NULL;
812
813 fe->tuner_priv = priv;
814
815 if ((debug) || (id[priv->nr] == pll_desc_id)) {
816 dprintk("dvb-pll[%d]", priv->nr);
817 if (i2c != NULL)
818 pr_cont(" %d-%04x", i2c_adapter_id(i2c), pll_addr);
819 pr_cont(": id# %d (%s) attached, %s\n", pll_desc_id, desc->name,
820 id[priv->nr] == pll_desc_id ?
821 "insmod option" : "autodetected");
822 }
823
824 kfree(b1);
825
826 return fe;
827 }
828 EXPORT_SYMBOL(dvb_pll_attach);
829
830 MODULE_DESCRIPTION("dvb pll library");
831 MODULE_AUTHOR("Gerd Knorr");
832 MODULE_LICENSE("GPL");
CRIS linux kernel tree